Damaged done by a wood boring weevil. Cossonine tomolips quercicola. Found in the kitchen cabinets in a home in west Houston. Areas of infestation had moisture readings of over 25%. Solution: eliminate the moisture the weevil will not survive. Talcum powder frass.
http://www.youtube.com/watch?v=BMrBln7286g
Video of damage to kitchen cabinets
Video of damage to kitchen cabinets